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Aqueous binder for building

A water-based adhesive, construction technology, applied in the direction of adhesive types, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor frost resistance, poor water resistance, slow drying speed, etc. To achieve the effect of good water resistance and high bonding strength

Inactive Publication Date: 2018-11-06
陈少同
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of slow drying speed, poor water resistance and poor frost resistance of water-based adhesives in the prior art, the present invention provides a water-based adhesive for construction, which has high bonding strength, good water resistance, fast drying speed and Advantages of good antifreeze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation of succinic acid modified polyvinyl alcohol (PVA): take an appropriate amount of PVA, add water to make the PVA glue mass concentration 7%, heat it in a water bath under electric stirring, control the water bath temperature to be 80-90 ° C, after completely dissolving, Stop heating to obtain PVA glue. In a water bath at a certain temperature, add succinic acid to the above PVA glue, wherein the mass ratio of PVA glue to succinic acid is 5.6:1, stir under airtight conditions to react, cool to room temperature, and obtain modified PVA glue.

[0016] Each component is weighed by the following parts by weight:

[0017] 25 parts of succinic acid modified polyvinyl alcohol, 7 parts of hydroxypropyl cellulose, 2 parts of ethylenediamine, 3 parts of borax, 1 part of polyacrylamide, 3 parts of dimethyl silicone oil, 2 parts of potassium persulfate, water 150 servings.

[0018] Mix succinic acid-modified polyvinyl alcohol and water at a ratio of 1:1 by weight, s...

Embodiment 2

[0020] Adhesive components: 20 parts of succinic acid modified polyvinyl alcohol, 7 parts of hydroxypropyl cellulose, 3 parts of ethylenediamine, 3 parts of borax, 1 part of polyacrylamide, 3 parts of dimethyl silicone oil, over Potassium sulfate 2 parts, water 150 parts.

[0021] The preparation method is the same as in Example 1.

Embodiment 3

[0023] Adhesive components:

[0024] 30 parts of succinic acid modified polyvinyl alcohol, 7 parts of hydroxypropyl cellulose, 3 parts of ethylenediamine, 3 parts of borax, 1 part of polyacrylamide, 3 parts of dimethyl silicone oil, 2 parts of potassium persulfate, water 150 servings.

[0025] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention provides an aqueous binder for a building. The aqueous binder comprises the following components in parts by weight: 20-30 parts of succinic acid modified polyvinyl alcohol, 5-10 parts of hydroxy propyl cellulose, 1-3 parts of ethylenediamine, 1-5 parts of borax, 0.5-2 parts of polyacrylamide, 1-5 parts of dimethicone, 0.5-3 parts of potassium persulfate, and 100-200 parts of water.The aqueous binder has the characteristics of being high in binding strength and high in water resistance.

Description

technical field [0001] The present application relates to the technical field of adhesives, in particular to the technical field of water-based adhesives for construction. Background technique [0002] Construction adhesive is an essential material for construction engineering, mainly used for sealing various seams or holes in buildings to prevent gas, liquid, and solid from penetrating, and to prevent structural materials from being destroyed when the structure is displaced, thereby playing a role It has the functions of heat preservation, sound insulation, waterproof, dustproof, gasproof, fireproof, anticorrosion, shock absorption and preventing joints from accumulating foreign matter. Existing commonly used adhesives include non-curing asphalt coatings. The adhesive effect of this adhesive is not good enough, the construction needs to be heated, and is greatly affected by the temperature, and the requirements for the climatic conditions of the construction are relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/04C09J11/04C09J11/06C09J11/08
CPCC08K2003/387C08L2205/035C09J11/04C09J11/06C09J11/08C09J129/04C08L1/284C08K3/38C08K5/17C08K3/30
Inventor 陈少同
Owner 陈少同